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Maarten Breddels

Vaex: Out of Core Dataframes for Python

Vaex is a Python library with a DataFrame API that works efficiently with big (~1 billion rows) tabular datasets. Using an expression system and memory mapping, all operations can be performed lazily and in chunks, while using a familiar DataFrame API and regular numpy expressions, enabling data cleansing, on the fly computations and visualizations for massive datasets on even laptops.